This year when we sit down to our Thanksgiving feasts, we can do more than just salivate.

As we enjoy our turkey, we can appreciate not just its juicy flesh and crisp skin, but marvel at its remarkable genome, with its 80 chromosomes (humans have 46) and strange, disease-causing mutations.

A draft of the genetic sequence of this holiday bird was released in September 2010, and it's not alone: Many other foods that will grace our harvest tables have also had their ingredients sequenced. Here, a guide to the DNA of your Turkey Day dinner.